# openssl_cms_decrypt

(PHP 8)

openssl_cms_decrypt — Decrypt a CMS message

### Beschreibung

openssl_cms_decrypt(
string `$input_filename`,
string `$output_filename`,
#[\SensitiveParameter] OpenSSLCertificate|string `$certificate`,
#[\SensitiveParameter] OpenSSLAsymmetricKey|OpenSSLCertificate|array|string|null `$private_key` = `null`,
int `$encoding` = `OPENSSL_ENCODING_SMIME`
): bool

Decrypts a CMS message.

### Parameter-Liste

`input_filename`

  The name of a file containing encrypted content.

`output_filename`

  The name of the file to deposit the decrypted content.

`certificate`

  The name of the file containing a certificate of the recipient.

`private_key`

  The name of the file containing a PKCS#8 key.

`encoding`

  The encoding of the input file. One of `OPENSSL_ENCODING_SMIME`, `OPENSSL_ENCODING_DER` or `OPENSSL_ENCODING_PEM`.

### Rückgabewerte

Gibt bei Erfolg `true` zurück. Bei einem Fehler wird `false` zurückgegeben.

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